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【摘要】肯定句变否定句的几种主要形式：代词的转换；副词的转换；形容词的转换；否定转移；
enough to句式的转换及let 句式的转换。
【关键词】代词none ,noone ,nobody ,nothing ,neither ,neither…nor ;nowhere ,hardly ,no
longer ,never ,seldomfew,little,not much 动词think ,believe ,except ,guess ;suppose
,imaginetoo 形容词的反义词 to do something ; let 句式
我们都知道在英语中将肯定句变为否定句，一般情况下是通过not构成，但并不是所有的肯定句变为否定
句都如此。下面从六个方面简要介绍几种特殊的否定句。
一、 通过代词的转换实现肯定句变否定句
1、若all ,everybody (everyone) ,somebody (someone) , something , everything 这些不定代词作
主语时，将all换为none ; everybody (everyone)换为no one ; something , everything换为nothing
。如：
1）All of the students are Young Pioneers .
None of the students is Young Pioneer .
2）Everybody knows him very much .
No one knows him very much .
3) Somebody is in the room .
Nobody is in the room .
4) There is something wrong with her .
There is nothing wrong with her .
2.若both或both…and 作主语时，则将both换为neither ；both…and换为neither…nor。如：
1）Both of us are teachers .
Neither of us is a teacher .
2）Both Tom and I are watching TV .
Neither Tom and I am watching TV .
3.若so 引起的倒装句式构成否定时，则将so 换为nor 。如：
She is good at swimming .So am I .
She is good at swimming .Nor am I .
二、通过副词的转换实现肯定句变否定句
1.若句中有副词everywhere时，则将everywhere换为nowhere 。如：
We can finf these flowers everywhere .
We can finf these flowers noywhere .
2.若句中有almost 副词时，则将almost换为hadly 。如：
They almost reached the top of the mountain last year .
They hadly reached the top of the mountain last year .
3.若句中有副词still 时，则将still 换为no longer 。如：
My father still is a teacher .
My father still is no longer a teacher .
4，若句中有副词always ，ever ，often ，usually ，sometimes 时，则将always ，ever 换为never
；often ，usually ，sometimes 换为seldom 。如：
1）Kate always helps others .
Kate never helps others .
He has ever been to Sydney .
He has never been to Sydney .
2）It often rains here .
It seldom rains here .
The man usually went for a walk after supper .
The man seldom went for a walk after supper .
The cat sometimes plays with the ball .
The cat seldom plays with the ball .
三、通过形容词的转换实现肯定句变否定句
若句中名词前有many (some)，much (some)，plenty of 等代词修饰时，则将many (some)换为few ；
much (some)换为little ；plenty of换为not much 或little 。如：
1）Many(some) students have been to the Great Wall .
Few students have been to the Great Wall .
2）Much(some) tea is in the cup .
Little tea is in the cup .
3）There is planty of snow in winter .
There is not much snow in winter .
There is little snow in winter .
四、通过否定转移实现肯定句变否定句
若宾语从句主句的谓语动词为think ，believe ，except ，guess ，suppose ，imagine 时，则习惯上
通过否定主句的谓语动词来否定从句的谓语动词，而翻译时则仍然否定从句，即我们所说的否定转移现
象。如：
I think English is important .
I don’t think English is important .
五、若句中含有形容词 enough to 时，则将形容词 enough to换为too 形容词的反义词 to do
something 句式。如：
Ann is old enough to go to school .
Ann is too young to go to school .
六、let 句式的肯定句变否定句
当let 引起的表示建议的祈使句变否定句时，则在let 后加not 。如：
Let’s go to bed .
Let’s not go to bed .
美国人偶尔也用Don’t let …如：
Let’s dring together .
Don’t let’s dring together .
若为了加强语气则可以用Let’s don’t …如：
Let’s go on working .
Let’s don’t go on working .
enough to句式的转换及let 句式的转换。
【关键词】代词none ,noone ,nobody ,nothing ,neither ,neither…nor ;nowhere ,hardly ,no
longer ,never ,seldomfew,little,not much 动词think ,believe ,except ,guess ;suppose
,imaginetoo 形容词的反义词 to do something ; let 句式
我们都知道在英语中将肯定句变为否定句，一般情况下是通过not构成，但并不是所有的肯定句变为否定
句都如此。下面从六个方面简要介绍几种特殊的否定句。
一、 通过代词的转换实现肯定句变否定句
1、若all ,everybody (everyone) ,somebody (someone) , something , everything 这些不定代词作
主语时，将all换为none ; everybody (everyone)换为no one ; something , everything换为nothing
。如：
1）All of the students are Young Pioneers .
None of the students is Young Pioneer .
2）Everybody knows him very much .
No one knows him very much .
3) Somebody is in the room .
Nobody is in the room .
4) There is something wrong with her .
There is nothing wrong with her .
2.若both或both…and 作主语时，则将both换为neither ；both…and换为neither…nor。如：
1）Both of us are teachers .
Neither of us is a teacher .
2）Both Tom and I are watching TV .
Neither Tom and I am watching TV .
3.若so 引起的倒装句式构成否定时，则将so 换为nor 。如：
She is good at swimming .So am I .
She is good at swimming .Nor am I .
二、通过副词的转换实现肯定句变否定句
1.若句中有副词everywhere时，则将everywhere换为nowhere 。如：
We can finf these flowers everywhere .
We can finf these flowers noywhere .
2.若句中有almost 副词时，则将almost换为hadly 。如：
They almost reached the top of the mountain last year .
They hadly reached the top of the mountain last year .
3.若句中有副词still 时，则将still 换为no longer 。如：
My father still is a teacher .
My father still is no longer a teacher .
4，若句中有副词always ，ever ，often ，usually ，sometimes 时，则将always ，ever 换为never
；often ，usually ，sometimes 换为seldom 。如：
1）Kate always helps others .
Kate never helps others .
He has ever been to Sydney .
He has never been to Sydney .
2）It often rains here .
It seldom rains here .
The man usually went for a walk after supper .
The man seldom went for a walk after supper .
The cat sometimes plays with the ball .
The cat seldom plays with the ball .
三、通过形容词的转换实现肯定句变否定句
若句中名词前有many (some)，much (some)，plenty of 等代词修饰时，则将many (some)换为few ；
much (some)换为little ；plenty of换为not much 或little 。如：
1）Many(some) students have been to the Great Wall .
Few students have been to the Great Wall .
2）Much(some) tea is in the cup .
Little tea is in the cup .
3）There is planty of snow in winter .
There is not much snow in winter .
There is little snow in winter .
四、通过否定转移实现肯定句变否定句
若宾语从句主句的谓语动词为think ，believe ，except ，guess ，suppose ，imagine 时，则习惯上
通过否定主句的谓语动词来否定从句的谓语动词，而翻译时则仍然否定从句，即我们所说的否定转移现
象。如：
I think English is important .
I don’t think English is important .
五、若句中含有形容词 enough to 时，则将形容词 enough to换为too 形容词的反义词 to do
something 句式。如：
Ann is old enough to go to school .
Ann is too young to go to school .
六、let 句式的肯定句变否定句
当let 引起的表示建议的祈使句变否定句时，则在let 后加not 。如：
Let’s go to bed .
Let’s not go to bed .
美国人偶尔也用Don’t let …如：
Let’s dring together .
Don’t let’s dring together .
若为了加强语气则可以用Let’s don’t …如：
Let’s go on working .
Let’s don’t go on working .